package com.mmall.controller.backend;

import com.mmall.common.Const;
import com.mmall.common.ResponseCode;
import com.mmall.common.ServerResponse;
import com.mmall.pojo.User;
import com.mmall.service.ICategoryService;
import com.mmall.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpSession;

@Controller
@RequestMapping("/manage/category")
public class CategoryManageController {

    @Autowired
    private IUserService iUserService;
    @Autowired
    private ICategoryService iCategoryService;

    /**
     * 增加分类
     * @return
     */
    @RequestMapping("add_category.do")
    @ResponseBody
    public ServerResponse addCategory(HttpSession session , String categoryName, @RequestParam(value = "parentId",defaultValue = "0") int parentId){
        //首先检查用户
        User user = (User)session.getAttribute(Const.CURRENT_USER);

        if( user == null ){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(),"用户未登录，请登录");
        }

        //校验是否为管理员
        if( iUserService.checkAdminRole(user).isSuccess()){
            return iCategoryService.addCategory(categoryName,parentId);
        }
        else{
            return ServerResponse.createByErrorMessage("无权限操作，需要管理员权限");
        }
    }

    @RequestMapping("set_category_name.do")
    @ResponseBody
    public ServerResponse setCategoryName(HttpSession session ,Integer categoryId,String categoryName){
        //首先检查用户
        User user = (User)session.getAttribute(Const.CURRENT_USER);

        if( user == null ){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(),"用户未登录，请登录");
        }

        //校验是否为管理员
        if( iUserService.checkAdminRole(user).isSuccess()){
            return  iCategoryService.updateCategoryName(categoryId,categoryName);
        }
        else{
            return ServerResponse.createByErrorMessage("无权限操作，需要管理员权限");
        }
    }

    @RequestMapping("get_category.do")
    @ResponseBody
    public ServerResponse getChildrenParallelCategory(HttpSession session,@RequestParam(value = "categoryId" ,defaultValue = "0") Integer categoryId){
        User user = (User)session.getAttribute(Const.CURRENT_USER);
        System.out.println(user.getUsername());
        if(user == null){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(),"用户未登录,请登录");

        }
        if(iUserService.checkAdminRole(user).isSuccess()){
            //查询子节点的category信息,并且不递归,保持平级
            return iCategoryService.getChildrenParallelCategory(categoryId);
        }else{
            return ServerResponse.createByErrorMessage("无权限操作,需要管理员权限");
        }
    }


    @RequestMapping("get_deep_category.do")
    @ResponseBody
    public ServerResponse getChildrenAndDeepChildrenCategory(HttpSession session,@RequestParam(value = "categoryId" ,defaultValue = "0")Integer categoryId){
        User user = (User)session.getAttribute(Const.CURRENT_USER);

        if( user == null ){
            return ServerResponse.createByErrorCodeMessage(ResponseCode.NEED_LOGIN.getCode(),"用户未登录，请登录");
        }

        //校验是否为管理员
        if( iUserService.checkAdminRole(user).isSuccess()){
            return  iCategoryService.selectCategoryAndChildrenById(categoryId);
        }
        else{
            return ServerResponse.createByErrorMessage("无权限操作，需要管理员权限");
        }
    }


}
